Heat Transfer Quiz Study Guide
Directions: Please complete the following activities. THIS WILL BE THE
ONLY PAPER YOU NEED TO STUDY FOR YOUR QUIZ.
Part 1- Write the definitions for the following words.
1.
Conduction- heat moving between 2 objects where molecules are touching.
2. Convection- method of moving heat where warm things rise and cool things sink.
3. Radiation- heat energy that travels in waves through the air.
4. Differential heating- different materials heat up at different rates.
Part 2- Fill in the blanks with true or false
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____F____ warm air sinks
____F____ the sun DIRECTLY heats the air in our atmosphere
____F____ cool air rises
____T____ dark objects absorb more solar radiation than light objects
____F____ when air warms up the air molecules move slower
____F____ when air cools down the air molecules move faster
____T____ higher temperature means faster moving molecules
____T____ lower temperature mean slower moving molecules
____T____ low pressure is under rising air
____T____ high pressure is under sinking air
____F____ wind always blows from low pressure to high pressure
Part 3- fill in the blanks below the following diagram
H
L
Wind
1. The sun heats the surface of the Earth by radiation which travels in waves.
2. As the cool air touches the warm surface, it begins to heat from conduction.
3. This warm air begins to rise and it will eventually cool and begin to sink. This is
called convection.
4. All surfaces on the Earth absorb radiation. These surfaces will reradiate their heat
to warm the atmosphere.
Place a large “L” on the diagram where there is low pressure.
Place a large “H” on the map where there is high pressure.
Draw and arrow showing which way the wind would be blowing.
Part 4- Read the following examples. Decide if the heat transfers are conduction,
convection, or radiation. Write “Co” for conduction, a “Cv” for convection and “R” for
radiation.
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____Co__ burning hand on a hot stove
2. __Cv___hot air balloon rising
__R____ feeling the warmth of a fire
4. __R___hot car in summer time
__Co____ spoon heating up in soup
6. __Cv___lava lamp
__R____ sun warming Earth’s surface
8. __Co___ grabbing a cold can of soda
__Cv____ pasta traveling in circle in hot water 10. __Cv___ low pressure forming